EN ISO 4892-3:2024

SLOVENSKI STANDARD
oSIST prEN ISO 4892-3:2024
01-januar-2024
Nadomešča:
SIST EN ISO 4892-3:2016
Polimerni materiali - Metode izpostavljanja laboratorijskim virom svetlobe - 3. del:
Fluorescentne UV-svetilke (ISO/DIS 4892-3:2023)
Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps
(ISO/DIS 4892-3:2023)
Kunststoffe - Künstliches Bestrahlen oder Bewittern in Geräten - Teil 3: UV-
Leuchtstofflampen (ISO/DIS 4892-3:2023)
Plastiques - Méthodes d'exposition à des sources lumineuses de laboratoire - Partie 3:
Lampes fluorescentes UV (ISO/DIS 4892-3:2023)
Ta slovenski standard je istoveten z: prEN ISO 4892-3
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
oSIST prEN ISO 4892-3:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN ISO 4892-3:2024
oSIST prEN ISO 4892-3:2024
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4892-3
ISO/TC 61/SC 6 Secretariat: DIN
Voting begins on: Voting terminates on:
2023-11-06 2024-01-29
Plastics — Methods of exposure to laboratory light
sources —
Part 3:
Fluorescent UV lamps
Plastiques — Méthodes d'exposition à des sources lumineuses de laboratoire —
Partie 3: Lampes fluorescentes UV
ICS: 83.080.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
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NATIONAL REGULATIONS.
ISO/DIS 4892-3:2023(E)
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TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

oSIST prEN ISO 4892-3:2024
ISO/DIS 4892-3:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4892-3
ISO/TC 61/SC 6 Secretariat: DIN
Voting begins on: Voting terminates on:

Plastics — Methods of exposure to laboratory light
sources —
Part 3:
Fluorescent UV lamps
Plastiques — Méthodes d'exposition à des sources lumineuses de laboratoire —
Partie 3: Lampes fluorescentes UV
ICS: 83.080.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
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WHICH REFERENCE MAY BE MADE IN
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 4892-3:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
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TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

oSIST prEN ISO 4892-3:2024
ISO/DIS 4892-3:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and Definitions .1
4 Principle . 1
5 Apparatus . 2
5.1 Laboratory light source . 2
5.2 Test chamber . 5
5.3 Radiometer . 6
5.4 Control of temperature . 6
5.5 Wetting . 6
5.5.1 General . 6
5.5.2 Spray and condensation system . 7
5.6 Control of humidity . 7
5.7 Specimen holders . 7
5.8 Apparatus to assess changes in properties . 7
6 Test specimens . 8
7 Test conditions .8
7.1 Radiation . 8
7.2 Temperature . 8
7.3 Condensation and spray cycles . 8
7.4 Cycles with dark periods . 8
7.5 Sets of exposure conditions . 8
8 Procedure .10
8.1 General . 10
8.2 Mounting the test specimens . 10
8.3 Exposure . 10
8.4 Measurement of radiant exposure . 11
8.5 Determination of changes in properties after exposure. 11
9 Test report .11
Annex A (normative) Relative irradiance of typical fluorescent UV lamps .12
Annex B (informative) Condensation type device .16
Annex C (informative) Climatic chamber type device .17
Annex D (informative) Alternative test cycles .18
Bibliography .19
iii
oSIST prEN ISO 4892-3:2024
ISO/DIS 4892-3:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents). ISO shall not be held responsible for identifying any or all
such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 6,
Ageing, chemical and environmental resistance, in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 249, Plastics, in accordance with the Agreement
on technical cooperation between ISO and CEN (Vienna Agreement).
This fifth edition cancels and replaces the fourth edition (ISO 4892-3:2016), which has been technically
revised.
The main changes are as follows:
— clarification that two fundamentally different types of test chambers exist added (e.g. in 5.2, 5.4,
new Annexes);
— new Annex B “Condensation type device”, Annex C “Climatic chamber type device” and Annex D
“Alternative test cycles” added;
— reference to CIE 85 updated to CIE 241;
— combination of different UV fluorescent lamps deleted;
— Clause 3 “Terms and definitions” added;
— lamp type designations 1A, 1B, 2 deleted;
— editorial changes.
A list of all parts in the ISO 4892 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
oSIST prEN ISO 4892-3:2024
DRAFT INTERNATIONAL STANDARD ISO/DIS 4892-3:2023(E)
Plastics — Methods of exposure to laboratory light
sources —
Part 3:
Fluorescent UV lamps
1 Scope
...